/**
 * log10x_update_env — rename an env or set it as the user's default,
 * via `PUT /api/v1/user/env`.
 *
 * Backend handler: backend/lambdas/user-service-go/cmd/environment/main.go
 * (handleUpdate, dispatched on `PUT` and `PATCH`). Documented at
 * mksite/docs/api/manage.md "Update Environment".
 *
 * IMPORTANT: requires the `PUT /api/v1/user/env` route to be configured
 * in the API Gateway. Without it the call fails at the gateway layer
 * with a 4xx before the lambda is invoked. See the backend PUT route
 * (fix(gateway): wire PUT /api/v1/user/env).
 */
import { z } from 'zod';
import type { Environments } from '../lib/environments.js';
import { type StructuredOutput } from '../lib/output-types.js';
export declare const updateEnvSchema: {
    env_id: z.ZodString;
    name: z.ZodOptional<z.ZodString>;
    is_default: z.ZodOptional<z.ZodBoolean>;
};
export declare function executeUpdateEnv(args: {
    env_id: string;
    name?: string;
    is_default?: boolean;
}, envs: Environments): Promise<string | StructuredOutput>;